that version is almost 8 months old. install the latest version on top of your old version without uninstalling on your old system and then do a backup of your business. then try importing the backup to new system.

It is not possible again to install in computer, from where i took backup, because that computer is crashed already… that is why i want to install back file which we normally kept in email, to be safer side if any thing goes wrong in computer files. so now that back up file want to install.